Home / 3,760.73-5,639.55-1,127.31

Finding the Fourth Proportional to 3,760.73, 5,639.55 and 1,127.31

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Solution

The fourth proportional to 3,760.73, 5,639.55 and 1,127.31 is: 1,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.73 : 5,639.55 = 1,127.31 : x
  2. Step 2: Convert to fraction form
    3,760.73/5,639.55 = 1,127.31/x
  3. Step 3: Cross multiply
    3,760.73x = 5,639.55 × 1,127.31
  4. Step 4: Simplify right side
    3,760.73x = 6,357,521.11
  5. Step 5: Solve for x
    x = 6,357,521.11/3,760.73
  6. Step 6: Final answer
    x = 1,690.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.